Improved steam-propeller for boats



N.PErERs, PHDTOMTIIOGHAPHER, WASHINGTON. o. C.

UNITED STATES PATENT FFICE.,

ALLEXEY WV. VON SCHMIDT, OF SAN FRANCISCO, CALIFORNIA.

IMPROVED STEAM-PROPELLER FOR BOATS.

, Specification forming part of Letters Patent No. 59,686, dated November 13, 1866.

To all whom it may concer/n:

Be it known that I, ALLEXEY W. VoN SCHMIDT, of the city and county ot' San Frailcisco, and State of California, have invented a new Method, Mode, and Apparatus for Propelling Boats, Ships, and Vessels by Steam; and that the following is a clear, full, and eX- aot description of the principles or character which distinguish the same from all others heretofore known or employed.

The nature and plan of my inventionv and the making and using the same are as follows, reference being had to the accompanying drawings, of which- Figure l is a top View of the vessel and propeller-pipes5 Fig. 2, a longitudinal section of vessel and propeller-pipes, and also shows the mode of applying the steam.

My invention consists in the direct application of steam on and upon the column of water contained in the propeller-pipe, thereby forcing said column of water outward and propelling the vessel by the action of said column upon the water in which the vessel iioats; and also in the mechanical construction of the apparatus used for this purpose.

I describe vthe same as follows, viz: I construct a boat or vessel in the ordinary manner. I use a boiler for generating` steam in the usual way. I introduce one or more pipes of suitable size on each side of the vessel beneath the water-line, as represented in Fig. 2, letter a. The steam-pipe, letter f, Figs. l and 2, leading from the boiler K enters the propeller-pipe a, Figs. l and 2, and by means of stop-cocks or valves c the steam is let on direct from the boiler K through steam-pipes g on the water in pipes a.

Then the vessel is required to move ahead, steam is let on by opening stop-cocks or valves e. The force of steam drives the water out of the pipe a. rIhe water coming out of pipe a comes in contact with the water on the outside of the vessel and lgives the necessary power, the water coming into pipe a from the opening' .r as fastas it is required.

Then the Vessel is to be backed,stopcocks or valves c are closed and stop-cocks or valves b arev opened, when the action of the steam reverses the current of water in the pipe a., and the water passing forward through the pipe a at z' causes the vessel to back.

-I do not conne myself to one set of propellers, but I put in a number of them, onthe same principle, on each side-of the vessel, so as to get more speed should it be required.

I do not claim as my invention the forcing of water into vessels under pressure by a jet or jets ot' steam.; but

That I claim as my invention, and desire to secure by Letters Patent, is as follows:

-In combination with a propeller-pipe, arranged either inside or outside the vessel, but

,below the water-line, and one or more stationary steam-pipes the ends or nozzles of which are within and point respectively toward the openings of the propeller-pipe, one or more valves or cocks, arranged so that a column of steam may be projected at pleasure through either nozzle, thus induein g a current of water through the propeller-piiie, as and for the purposes shown and described.

ALLEXEY W. VON SCHMIDT. Witnesses:

ROBERT SIMsoN, J ULIUs H. VON SCHMIDT. 

